Combination water-glass guard and lamp.



G. A. PRATTE & 0. A. ALEXANDER. COMBINATION WATER GLASS GUARD AND LAMP. APPLIOATION FILED APR. 10 1908.

Patented May 11, 1909.

UNITED STATES, PATENT OFFICE.

CHARLES A. PRATTE, OF DENVER, COLORADO, AND OLIVER A. ALEXANDER, OF PHILADEL- PHIA, PENNSYLVANIA.

COMBINATION WATER-GLASS GUARD AND LAMP.

Specification of Letters Patent.

Patented May 11, 1909.

Application filed April 10, 1908. Serial No. 426,194.

To all whom it may concern:

Be it known that we, GHAELEs A. PRATTE and OLIVEE A. ALEXANDER, both citizens of the United States, the said OHARLEs A. PRATTE residing in the city and county of Denver, State of Colorado, and the said OLI- VER A. ALEXANDER residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Combination VVater-Glass Guards and Lamps; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification. 1

Our invention relates to means for illuminating and protecting Water gages, the said means being readily-attachable and detachable in relation to the ordinary water gage.

The construction consists of two main members, one of which is a casing carrying a lamp or illuminating device adapted to 00- cupy a position on one side of the water glass while the guard or protector occupies a position on the opposite side and is preferably composed of wire mesh material sufficiently open to permit the water glass to be clearly observed therethrough. The lamp casing is provided with transparent means through which the light from the lamp casing passes to the water glass. When the device is in use, the water glass is located between the protector and the transparent plate through which the light from the lamp passes. The lamp casing and the guard are readily detachable the one from the other.

Having briefly outlined our improved construction, we will proceed to describe the same in detail reference being made to the accompanying drawing in which is illustrated an embodiment thereof.

In this drawing, Figure 1 illustrates our improved device shown in connection with a water glass, the latter being mounted upon a boiler or other apparatus with which it is connected. In this view the construction upon which the glass is mounted is chiefly broken away, a sufficient portion only being shown to illustrate the use of the device. Fig. 2 is a section taken through the shell of the boiler showing the device in elevation looking in the direction of arrow 2 Fig. 1.

Fig. 3 is a cross section taken on the line 33 Fig. 2 looking downwardly.

The same reference characters indicate the same parts in all the views. I

Let the numeral 5 designate the shell of the boiler or other device upon which the water glass 6 is mounted. This glass is 0011- nected with upper and lower valves 7 and 8 as is the usual custom,- the casing of the valves being threaded into openings formed in the shell 5.

Let the numeral 9 designate a casing within which is located a lamp 10 or other suitable illuminating device. As shown in the drawing the lamp is located in the bottom of the casing and is of ordinary construction being adapted to hold a quantity of illuminating oil. It is evident, however, that any suitable illuminating device maybe employed. The lamp casing is'provided with a'door 12 hinged at one edge as shown at 13 and provided at its opposite edge with a fastening hasp 14 adapted to engage a pin 15. Theopening in the lamp casing which is closed by this door, is sufiicientlylarge to permit the insertion and removal of the lamp. The casing 9 is provided at its upper and lower extremities with metal straps 16 the same being secured thereto by rivets 17 or other suitable fastening devices. These metal straps project beyond the body of the casing and these protruding parts constitute leaf springs 18 whose extremities are bent outwardly to facilitate the attachment of the guard 19 which as shown in the drawing is composed of Wire mesh material 20 having metal bands 21 and 22 at its upper and lower extremities and vertically disposed plates 23 at its opposite edges, the plates 23 being attached to the bands 21 and 22 thus forming a frame for the mesh material 20. This guard 19 is U-shaped in cross section and its upper and lower bands are provided with pins 24 adapted to enter openings formed in the protruding springs 18. In order to c011- nect the guard with the lamp casing, it is only necessary to press the pins of the guard against the outwardly turned extremities of the springs 18, and as soon as the pins have reached a proper position, they will enter the openings of the springs.

The casing of the lamp is provided on one side with a slot 25 on opposite sides of which are angle plates 26 forming grooved ways to receive a transparent plate 27. The top of the lamp casing is provided with hooks 28 adapted to hook over the casing of the valve 7 with which the water glass is connected. These hooks project above and protrude beyond the side of the casing adjacent the guard and when the hooks engage the valve as aforesaid, the lamp casing is supported on one side of the water glass which in that event is directly in front of the transparent plate 27 (see Fig. 3). The guard is then applied to the lamp casing in the manner heretofore explained and when in position incloses the same on three sides as best illustrated in Fig. 8 of the drawing. It will be understood that when the lamp is lighted, the rays passing through the transparent plate 27, will fall upon the water glass and clearly illuminate the same making the level of the water therein readily observable through the interstices of the guard.

The water glass 6 is connected with the valves 7 and 8 by means of hexagonal nuts A and B. The upper and lower extremities of the guard are shaped to fit these nuts on two opposite sides, whereby the device is held securely in place. This is best illustrated in Fig. 3 where the position of the nut B is indicated by dotted lines. Attention is also called to the fact that the lower extremity of the guard rests upon the casing of the valve 8, thus further providing for holding the device securely in place upon a locomotive for instance.

Having thus described our invention, what We claim is:

1. The combination with a water glass, of an illuminating device including a housing, means for supporting the housing in proximity to the water glass, the said housing being provided with a slot adjacent the glass, a transparent plate covering said slot, the housing being provided with bands at the ity with the water glass, the said housing being provided with transparent means through which the light from the illuminating device passes to the water glass, the housing being also provided with bands at the top and bot tom and having protruding extremities forming leaf springs provided with openings, and a guard having bands at the top and bottom and provided with pins, the bands of the guard being adapted to engage the springs connected with the housing, the pins I L of the one element being adapted to enter the openings of the other element, whereby the guard and the housing are maintained in the assembled relation, scribed.

In testimony whereof we affix our signatures in presence of two witnesses.

CHARLES A. PRATTE. OLIVER A. ALEXAYDER.

substantially as de- Witnesses as to the signature of Charles A.

Pratte:

DENA NELSON, A. J. OBRIEN. Witnesses as to the signature of O. A. Alexander: 7

.1110. O. STEPToE, M. C. HULL. 

